Well, I am presuming: that you didn't notice this in the first days of summer when you started wearing sandals and your toes got some sun! Also did your feet get wet? There could be some staining from your socks/shoes. It's possible some type of lotion, sunblock or insect repellant spray or even medication reacted with your skin. Mild irritation/inflammation from rubbing/tight shoes? If persists. see Dermatologist.
Answered 7/16/2018
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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